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                    1.2019-12-28-数据结构和算法的关系
            
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                    2.2019-12-28-稀疏数组
            
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                    [git]
            
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                    1.2019-12-28-git-alias
            
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                    2.2019-12-29-git常用命令
            
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                    3.2019-12-31-git教程
            
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                    [go]
            
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                    1.2019-12-30-beego基本使用
            
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                    [java]
            
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                    1.2019-12-30-环境变量和系统属性
            
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                    2.2019-12-31-cloud-native-云原生
            
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                    3.2019-12-31-java语法难点
            
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                    4.2019-12-31-设计模式
            
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                    5.2020-01-12-Ajax跨域问题解决方案
            
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                    6.2020-01-12-freemarker应用场景介绍
            
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                    7.2020-01-12-jsp运行原理和运行过程
            
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                    8.2020-01-12-深入理解Maven中的Profile
            
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                    9.2020-01-12-缓存穿透-缓存击穿-缓存雪崩概念及解决方案
            
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                    10.2020-01-13-事务笔记
            
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                    11.2020-01-13-幂等性
            
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                    12.2020-01-16-java基本语法
            
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                    [arthas]
            
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                    1.2019-12-28-arthas-example
            
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                    2.2019-12-28-arthas添加支持执行历史命令的shell功能
            
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                    3.2020-01-10-思考性能调优
            
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                    4.2020-01-10-性能调优举例-最佳实践
            
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                    5.2020-01-10-性能调优举例一
            
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                    6.2020-01-10-性能调优举例三
            
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                    7.2020-01-10-性能调优举例二
            
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                    8.2020-01-10-性能调优举例四
            
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                    9.2020-01-15-性能调优举例五
            
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                    10.2020-05-12-性能调优举例六
            
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                    11.arthas-mind-map
            
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                    [dubbo]
            
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                    1.2019-12-28-dubbo涉及的技术
            
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                    2.2019-12-30-dubbo消费者访问流程
            
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                    3.2019-12-30-dubbo面试
            
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                    [jdk]
            
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                    1.2020-01-12-实例介绍 JAVA 泛型基础
            
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                    2.2020-01-13-ThreadLocal六连问
            
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                    [jvm]
            
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                    1.2019-12-30-性能调优
            
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                    [netty]
            
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                    1.2020-01-16-netty入门
            
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                    2.2020-01-16-netty核心概念
            
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                    [solr]
            
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                <a href="solr/2019-12-28-solr-7.6.0.tgz安装.html">
            
                    
                    1.2019-12-28-solr-7.6.0.tgz安装
            
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                <span>
            
                    
                    [spring]
            
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        <li class="chapter " data-level="2.13.1" data-path="spring/2020-01-12-SpringBoot属性读取方式介绍.html">
            
                <a href="spring/2020-01-12-SpringBoot属性读取方式介绍.html">
            
                    
                    1.2020-01-12-SpringBoot属性读取方式介绍
            
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        <li class="chapter " data-level="2.13.2" data-path="spring/2020-01-12-使用spring boot+mybatis plus快速入门.html">
            
                <a href="spring/2020-01-12-使用spring boot+mybatis plus快速入门.html">
            
                    
                    2.2020-01-12-使用spring boot+mybatis plus快速入门
            
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        <li class="chapter " data-level="2.13.3" data-path="spring/2020-01-13-spring-initMethod-destoryMethod.html">
            
                <a href="spring/2020-01-13-spring-initMethod-destoryMethod.html">
            
                    
                    3.2020-01-13-spring-initMethod-destoryMethod
            
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        <li class="chapter " data-level="2.13.4" data-path="spring/2020-01-13-spring循环依赖.html">
            
                <a href="spring/2020-01-13-spring循环依赖.html">
            
                    
                    4.2020-01-13-spring循环依赖
            
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        <li class="chapter " data-level="2.13.5" data-path="spring/2020-01-13-spring源码随记.html">
            
                <a href="spring/2020-01-13-spring源码随记.html">
            
                    
                    5.2020-01-13-spring源码随记
            
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        <li class="chapter " data-level="2.13.6" data-path="spring/2020-01-13-自定义mini-spring.html">
            
                <a href="spring/2020-01-13-自定义mini-spring.html">
            
                    
                    6.2020-01-13-自定义mini-spring
            
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        <li class="chapter " data-level="2.14" >
            
                <span>
            
                    
                    [websocket]
            
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        <li class="chapter " data-level="2.14.1" data-path="websocket/2019-12-30-webscoket-springboot通信.html">
            
                <a href="websocket/2019-12-30-webscoket-springboot通信.html">
            
                    
                    1.2019-12-30-webscoket-springboot通信
            
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        <li class="chapter " data-level="2.15" >
            
                <span>
            
                    
                    [linux]
            
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        <li class="chapter " data-level="2.15.1" data-path="../linux/2019-12-28-Linux常用命令和快捷键.html">
            
                <a href="../linux/2019-12-28-Linux常用命令和快捷键.html">
            
                    
                    1.2019-12-28-Linux常用命令和快捷键
            
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        <li class="chapter " data-level="2.15.2" data-path="../linux/2019-12-28-从零到一环境安装.html">
            
                <a href="../linux/2019-12-28-从零到一环境安装.html">
            
                    
                    2.2019-12-28-从零到一环境安装
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.3" data-path="../linux/2019-12-30-vi-常用命令.html">
            
                <a href="../linux/2019-12-30-vi-常用命令.html">
            
                    
                    3.2019-12-30-vi-常用命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.4" data-path="../linux/2019-12-31-awk命令.html">
            
                <a href="../linux/2019-12-31-awk命令.html">
            
                    
                    4.2019-12-31-awk命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.5" data-path="../linux/2019-12-31-cup信息分析.html">
            
                <a href="../linux/2019-12-31-cup信息分析.html">
            
                    
                    5.2019-12-31-cup信息分析
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.6" data-path="../linux/2019-12-31-shell编程.html">
            
                <a href="../linux/2019-12-31-shell编程.html">
            
                    
                    6.2019-12-31-shell编程
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.7" data-path="../linux/2019-12-31-top命令.html">
            
                <a href="../linux/2019-12-31-top命令.html">
            
                    
                    7.2019-12-31-top命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.8" data-path="../linux/2019-12-31-普通用户docker的问题.html">
            
                <a href="../linux/2019-12-31-普通用户docker的问题.html">
            
                    
                    8.2019-12-31-普通用户docker的问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.9" data-path="../linux/2020-01-01-centos7 安装kubernetes.html">
            
                <a href="../linux/2020-01-01-centos7 安装kubernetes.html">
            
                    
                    9.2020-01-01-centos7 安装kubernetes
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.10" data-path="../linux/2020-01-01-centos安装常用配置.html">
            
                <a href="../linux/2020-01-01-centos安装常用配置.html">
            
                    
                    10.2020-01-01-centos安装常用配置
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.11" data-path="../linux/2020-01-01-docker使用.html">
            
                <a href="../linux/2020-01-01-docker使用.html">
            
                    
                    11.2020-01-01-docker使用
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.12" data-path="../linux/2020-01-01-kubernetes使用.html">
            
                <a href="../linux/2020-01-01-kubernetes使用.html">
            
                    
                    12.2020-01-01-kubernetes使用
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.13" data-path="../linux/2020-05-12-PG有用的SQL.html">
            
                <a href="../linux/2020-05-12-PG有用的SQL.html">
            
                    
                    13.2020-05-12-PG有用的SQL
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.14" data-path="../linux/2020-05-12-vim命令.html">
            
                <a href="../linux/2020-05-12-vim命令.html">
            
                    
                    14.2020-05-12-vim命令
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.16" >
            
                <span>
            
                    
                    [automate]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.16.1" data-path="../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                <a href="../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                    
                    1.2020-01-12-redis伪集群创建脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.2" data-path="../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                <a href="../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                    
                    2.2020-01-12-tomcat集群创建脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.3" data-path="../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                <a href="../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                    
                    3.2020-01-12-zookeeper自动化脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.4" data-path="../linux/automate/2020-01-12-其他自动化脚本.html">
            
                <a href="../linux/automate/2020-01-12-其他自动化脚本.html">
            
                    
                    4.2020-01-12-其他自动化脚本
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.17" >
            
                <span>
            
                    
                    [MySQL]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.17.1" data-path="../MySQL/2019-12-31-mysql常用命令.html">
            
                <a href="../MySQL/2019-12-31-mysql常用命令.html">
            
                    
                    1.2019-12-31-mysql常用命令
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.18" >
            
                <span>
            
                    
                    [nginx]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.18.1" data-path="../nginx/2019-12-29-Nginx-Keepalived高可用集群.html">
            
                <a href="../nginx/2019-12-29-Nginx-Keepalived高可用集群.html">
            
                    
                    1.2019-12-29-Nginx-Keepalived高可用集群
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.18.2" data-path="../nginx/2020-01-16-nginx参数详细说明.html">
            
                <a href="../nginx/2020-01-16-nginx参数详细说明.html">
            
                    
                    2.2020-01-16-nginx参数详细说明
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.19" >
            
                <span>
            
                    
                    [other]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.19.1" data-path="../other/2019-12-28-知识小计.html">
            
                <a href="../other/2019-12-28-知识小计.html">
            
                    
                    1.2019-12-28-知识小计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.2" data-path="../other/2020-01-04-科学上网.html">
            
                <a href="../other/2020-01-04-科学上网.html">
            
                    
                    2.2020-01-04-科学上网
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.3" data-path="../other/2020-05-13-正则表达式.html">
            
                <a href="../other/2020-05-13-正则表达式.html">
            
                    
                    3.2020-05-13-正则表达式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.4" data-path="../other/template.html">
            
                <a href="../other/template.html">
            
                    
                    4.template
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.20" >
            
                <span>
            
                    
                    [PostgreSQL]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.20.1" data-path="../PostgreSQL/2019-12-28-PostgreSQL安装文档.html">
            
                <a href="../PostgreSQL/2019-12-28-PostgreSQL安装文档.html">
            
                    
                    1.2019-12-28-PostgreSQL安装文档
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.2" data-path="../PostgreSQL/2019-12-28-Postgres学习笔记.html">
            
                <a href="../PostgreSQL/2019-12-28-Postgres学习笔记.html">
            
                    
                    2.2019-12-28-Postgres学习笔记
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.3" data-path="../PostgreSQL/2019-12-28-脚本MYSQL导出数据到PG.html">
            
                <a href="../PostgreSQL/2019-12-28-脚本MYSQL导出数据到PG.html">
            
                    
                    3.2019-12-28-脚本MYSQL导出数据到PG
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.4" data-path="../PostgreSQL/2020-01-04-docker-PostgreSQL安装文档.html">
            
                <a href="../PostgreSQL/2020-01-04-docker-PostgreSQL安装文档.html">
            
                    
                    4.2020-01-04-docker-PostgreSQL安装文档
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.5" data-path="../PostgreSQL/2020-01-17-阿里云PG主从切换问题.html">
            
                <a href="../PostgreSQL/2020-01-17-阿里云PG主从切换问题.html">
            
                    
                    5.2020-01-17-阿里云PG主从切换问题
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.21" >
            
                <span>
            
                    
                    [python]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.21.1" data-path="../python/2019-12-28-pip-install指定国内源镜像.html">
            
                <a href="../python/2019-12-28-pip-install指定国内源镜像.html">
            
                    
                    1.2019-12-28-pip-install指定国内源镜像
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.21.2" data-path="../python/2019-12-30-python内置函数.html">
            
                <a href="../python/2019-12-30-python内置函数.html">
            
                    
                    2.2019-12-30-python内置函数
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.21.3" data-path="../python/2019-12-30-一图搞懂基本python语法 .html">
            
                <a href="../python/2019-12-30-一图搞懂基本python语法 .html">
            
                    
                    3.2019-12-30-一图搞懂基本python语法 
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.22" >
            
                <span>
            
                    
                    [redis]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.22.1" data-path="../redis/2019-12-28-redis5.0.3安装.html">
            
                <a href="../redis/2019-12-28-redis5.0.3安装.html">
            
                    
                    1.2019-12-28-redis5.0.3安装
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.22.2" data-path="../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                <a href="../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                    
                    2.2019-12-28-redis5.0.3集群搭建
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.23" >
            
                <span>
            
                    
                    [tool]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.23.1" data-path="../tool/2019-12-28-idea高效使用技巧和快捷键.html">
            
                <a href="../tool/2019-12-28-idea高效使用技巧和快捷键.html">
            
                    
                    1.2019-12-28-idea高效使用技巧和快捷键
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.23.2" data-path="../tool/2019-12-28-PlantUML画图脚本.html">
            
                <a href="../tool/2019-12-28-PlantUML画图脚本.html">
            
                    
                    2.2019-12-28-PlantUML画图脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.23.3" data-path="../tool/2019-12-30-vscode高效使用.html">
            
                <a href="../tool/2019-12-30-vscode高效使用.html">
            
                    
                    3.2019-12-30-vscode高效使用
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.24" >
            
                <span>
            
                    
                    [windows]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.24.1" data-path="../windows/2020-01-12-本地服务成为互联网服务.html">
            
                <a href="../windows/2020-01-12-本地服务成为互联网服务.html">
            
                    
                    1.2020-01-12-本地服务成为互联网服务
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.24.2" data-path="../windows/2020-01-12-注册bat为windows服务.html">
            
                <a href="../windows/2020-01-12-注册bat为windows服务.html">
            
                    
                    2.2020-01-12-注册bat为windows服务
            
                </a>
            

            
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            </ul>
            
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                                <p>JSP&#x7684;&#x8FD0;&#x884C;&#x539F;&#x7406;&#x548C;&#x8FD0;&#x884C;&#x8FC7;&#x7A0B;</p>
<h2 id="jsp&#x7684;&#x8FD0;&#x884C;&#x539F;&#x7406;">JSP&#x7684;&#x8FD0;&#x884C;&#x539F;&#x7406;</h2>
<ol>
<li><p>WEB&#x5BB9;&#x5668;JSP&#x9875;&#x9762;&#x7684;&#x8BBF;&#x95EE;&#x8BF7;&#x6C42;&#x65F6;&#xFF0C;&#x5B83;&#x5C06;&#x628A;&#x8BE5;&#x8BBF;&#x95EE;&#x8BF7;&#x6C42;&#x4EA4;&#x7ED9;JSP&#x5F15;&#x64CE;&#x53BB;&#x5904;&#x7406;&#x3002;Tomcat&#x4E2D;&#x7684;JSP&#x5F15;&#x64CE;&#x5C31;&#x662F;&#x4E00;&#x4E2A;Servlet&#x7A0B;&#x5E8F;&#xFF0C;&#x5B83;&#x8D1F;&#x8D23;&#x89E3;&#x91CA;&#x548C;&#x6267;&#x884C;JSP&#x9875;&#x9762;&#x3002;</p>
</li>
<li><p>&#x6BCF;&#x4E2A;JSP&#x9875;&#x9762;&#x5728;&#x7B2C;&#x4E00;&#x6B21;&#x88AB;&#x8BBF;&#x95EE;&#x65F6;&#xFF0C;JSP&#x5F15;&#x64CE;&#x5148;&#x5C06;&#x5B83;&#x7FFB;&#x8BD1;&#x6210;&#x4E00;&#x4E2A;Servlet&#x6E90;&#x7A0B;&#x5E8F;&#xFF0C;&#x63A5;&#x7740;&#x518D;&#x628A;&#x8FD9;&#x4E2A;Servlet&#x6E90;&#x7A0B;&#x5E8F;&#x7F16;&#x8BD1;&#x6210;Servlet&#x7684;class&#x7C7B;&#x6587;&#x4EF6;&#xFF0C;&#x7136;&#x540E;&#x518D;&#x7531;WEB&#x5BB9;&#x5668;&#x50CF;&#x8C03;&#x7528;&#x666E;&#x901A;Servlet&#x7A0B;&#x5E8F;&#x4E00;&#x6837;&#x7684;&#x65B9;&#x5F0F;&#x6765;&#x88C5;&#x8F7D;&#x548C;&#x89E3;&#x91CA;&#x6267;&#x884C;&#x8FD9;&#x4E2A;&#x7531;JSP&#x9875;&#x9762;&#x7FFB;&#x8BD1;&#x6210;&#x7684;Servlet&#x7A0B;&#x5E8F;&#x3002;</p>
</li>
<li><p>Tomcat 8&#x628A;&#x4E3A;JSP&#x9875;&#x9762;&#x521B;&#x5EFA;&#x7684;Servlet&#x6E90;&#x6587;&#x4EF6;&#x548C;class&#x7C7B;&#x6587;&#x4EF6;&#x653E;&#x7F6E;&#x5728;<code>D:\apache-tomcat-8.0.42\work\Catalina\localhost\ROOT\org\apache\jsp\</code>&#x76EE;&#x5F55;&#x4E2D;&#xFF0C;Tomcat&#x5C06;JSP&#x9875;&#x9762;&#x7FFB;&#x8BD1;&#x6210;&#x7684;Servlet&#x7684;&#x5305;&#x540D;&#x4E3A;<code>org.apache.jsp</code>(&#x5373;&#xFF1A;<code>apache-tomcat-8.0.42\work\Catalina\localhost\ROOT\org\apache\jsp\</code>&#x6587;&#x4EF6;&#x4E0B;)</p>
</li>
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<p>&#x4F8B;&#x5B50;&#xFF1A;
HelloJSP.jsp:&#xFF08;&#x6587;&#x4EF6;&#x76EE;&#x5F55;&#xFF1A;<code>D:\apache-tomcat-8.0.42\webapps\ROOT\HelloJSP.jsp</code>&#xFF09;</p>
<pre><code class="lang-jsp">&lt;%@page language=&quot;java&quot; import=&quot;java.util.*&quot; pageEncoding=&quot;utf-8&quot; %&gt;
&lt;html&gt;
&lt;head&gt;
&lt;meta http-equiv=&quot;content-type&quot; content=&quot;text/html; charset=utf-8&quot;&gt;
&lt;title&gt;&#x7B80;&#x5355;JSP&#x9875;&#x9762;&#x793A;&#x4F8B;&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
&#x8FD9;&#x662F;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684; JSP&#x9875;&#x9762;&#x793A;&#x4F8B;&#x2014;&#x2014;HelloJSP &lt;br&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
<p>HelloJSP.jsp&#x9875;&#x9762;&#x88AB;&#x8BF7;&#x6C42;&#x65F6;&#xFF0C;Web&#x670D;&#x52A1;&#x5668;&#x4E2D;JSP&#x7F16;&#x8BD1;&#x5668;&#x4F1A;&#x7F16;&#x8BD1;&#x751F;&#x6210;&#x5BF9;&#x5E94;&#x7684;Java&#x6587;&#x4EF6;&#xFF0C;&#x5982;&#x4E0B;&#xFF1A;</p>
<p>HelloJSP_jsp.java:(&#x6587;&#x4EF6;&#x76EE;&#x5F55;&#xFF1A;<code>D:\apache-tomcat-8.0.42\work\Catalina\localhost\ROOT\org\apache\jsp\HelloJSP_jsp.java</code>)</p>
<pre><code class="lang-java"><span class="hljs-comment">/*
 * Generated by the Jasper component of Apache Tomcat
 * Version: Apache Tomcat/8.0.43
 * Generated at: 2018-06-04 07:52:28 UTC
 * Note: The last modified time of this file was set to
 *       the last modified time of the source file after
 *       generation to assist with modification tracking.
 */</span>
<span class="hljs-keyword">package</span> org.apache.jsp;

<span class="hljs-keyword">import</span> javax.servlet.*;
<span class="hljs-keyword">import</span> javax.servlet.http.*;
<span class="hljs-keyword">import</span> javax.servlet.jsp.*;
<span class="hljs-keyword">import</span> java.util.*;

<span class="hljs-keyword">public</span> <span class="hljs-keyword">final</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">HelloJSP_jsp</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">org</span>.<span class="hljs-title">apache</span>.<span class="hljs-title">jasper</span>.<span class="hljs-title">runtime</span>.<span class="hljs-title">HttpJspBase</span>
    <span class="hljs-keyword">implements</span> <span class="hljs-title">org</span>.<span class="hljs-title">apache</span>.<span class="hljs-title">jasper</span>.<span class="hljs-title">runtime</span>.<span class="hljs-title">JspSourceDependent</span>,
                 <span class="hljs-title">org</span>.<span class="hljs-title">apache</span>.<span class="hljs-title">jasper</span>.<span class="hljs-title">runtime</span>.<span class="hljs-title">JspSourceImports</span> </span>{

  <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> javax.servlet.jsp.JspFactory _jspxFactory =
          javax.servlet.jsp.JspFactory.getDefaultFactory();

  <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> java.util.Map&lt;java.lang.String,java.lang.Long&gt; _jspx_dependants;

  <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> java.util.Set&lt;java.lang.String&gt; _jspx_imports_packages;

  <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> java.util.Set&lt;java.lang.String&gt; _jspx_imports_classes;

  <span class="hljs-keyword">static</span> {
    _jspx_imports_packages = <span class="hljs-keyword">new</span> java.util.HashSet&lt;&gt;();
    _jspx_imports_packages.add(<span class="hljs-string">&quot;javax.servlet&quot;</span>);
    _jspx_imports_packages.add(<span class="hljs-string">&quot;java.util&quot;</span>);
    _jspx_imports_packages.add(<span class="hljs-string">&quot;javax.servlet.http&quot;</span>);
    _jspx_imports_packages.add(<span class="hljs-string">&quot;javax.servlet.jsp&quot;</span>);
    _jspx_imports_classes = <span class="hljs-keyword">null</span>;
  }

  <span class="hljs-keyword">private</span> <span class="hljs-keyword">volatile</span> javax.el.ExpressionFactory _el_expressionfactory;
  <span class="hljs-keyword">private</span> <span class="hljs-keyword">volatile</span> org.apache.tomcat.InstanceManager _jsp_instancemanager;

  <span class="hljs-keyword">public</span> java.util.Map&lt;java.lang.String,java.lang.Long&gt; getDependants() {
    <span class="hljs-keyword">return</span> _jspx_dependants;
  }

  <span class="hljs-keyword">public</span> java.util.Set&lt;java.lang.String&gt; getPackageImports() {
    <span class="hljs-keyword">return</span> _jspx_imports_packages;
  }

  <span class="hljs-keyword">public</span> java.util.Set&lt;java.lang.String&gt; getClassImports() {
    <span class="hljs-keyword">return</span> _jspx_imports_classes;
  }

  <span class="hljs-keyword">public</span> javax.el.<span class="hljs-function">ExpressionFactory <span class="hljs-title">_jsp_getExpressionFactory</span><span class="hljs-params">()</span> </span>{
    <span class="hljs-keyword">if</span> (_el_expressionfactory == <span class="hljs-keyword">null</span>) {
      <span class="hljs-keyword">synchronized</span> (<span class="hljs-keyword">this</span>) {
        <span class="hljs-keyword">if</span> (_el_expressionfactory == <span class="hljs-keyword">null</span>) {
          _el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
        }
      }
    }
    <span class="hljs-keyword">return</span> _el_expressionfactory;
  }
  <span class="hljs-keyword">public</span> org.apache.tomcat.<span class="hljs-function">InstanceManager <span class="hljs-title">_jsp_getInstanceManager</span><span class="hljs-params">()</span> </span>{
    <span class="hljs-keyword">if</span> (_jsp_instancemanager == <span class="hljs-keyword">null</span>) {
      <span class="hljs-keyword">synchronized</span> (<span class="hljs-keyword">this</span>) {
        <span class="hljs-keyword">if</span> (_jsp_instancemanager == <span class="hljs-keyword">null</span>) {
          _jsp_instancemanager = org.apache.jasper.runtime.InstanceManagerFactory.getInstanceManager(getServletConfig());
        }
      }
    }
    <span class="hljs-keyword">return</span> _jsp_instancemanager;
  }

  <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">_jspInit</span><span class="hljs-params">()</span> </span>{
  }

  <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">_jspDestroy</span><span class="hljs-params">()</span> </span>{
  }

  <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">_jspService</span><span class="hljs-params">(<span class="hljs-keyword">final</span> javax.servlet.http.HttpServletRequest request, <span class="hljs-keyword">final</span> javax.servlet.http.HttpServletResponse response)</span>
        <span class="hljs-keyword">throws</span> java.io.IOException, javax.servlet.ServletException </span>{

<span class="hljs-keyword">final</span> java.lang.String _jspx_method = request.getMethod();
<span class="hljs-keyword">if</span> (!<span class="hljs-string">&quot;GET&quot;</span>.equals(_jspx_method) &amp;&amp; !<span class="hljs-string">&quot;POST&quot;</span>.equals(_jspx_method) &amp;&amp; !<span class="hljs-string">&quot;HEAD&quot;</span>.equals(_jspx_method) &amp;&amp; !javax.servlet.DispatcherType.ERROR.equals(request.getDispatcherType())) {
response.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, <span class="hljs-string">&quot;JSPs only permit GET POST or HEAD&quot;</span>);
<span class="hljs-keyword">return</span>;
}

    <span class="hljs-keyword">final</span> javax.servlet.jsp.PageContext pageContext;
    javax.servlet.http.HttpSession session = <span class="hljs-keyword">null</span>;
    <span class="hljs-keyword">final</span> javax.servlet.ServletContext application;
    <span class="hljs-keyword">final</span> javax.servlet.ServletConfig config;
    javax.servlet.jsp.JspWriter out = <span class="hljs-keyword">null</span>;
    <span class="hljs-keyword">final</span> java.lang.Object page = <span class="hljs-keyword">this</span>;
    javax.servlet.jsp.JspWriter _jspx_out = <span class="hljs-keyword">null</span>;
    javax.servlet.jsp.PageContext _jspx_page_context = <span class="hljs-keyword">null</span>;


    <span class="hljs-keyword">try</span> {
      response.setContentType(<span class="hljs-string">&quot;text/html;charset=utf-8&quot;</span>);
      pageContext = _jspxFactory.getPageContext(<span class="hljs-keyword">this</span>, request, response,
                  <span class="hljs-keyword">null</span>, <span class="hljs-keyword">true</span>, <span class="hljs-number">8192</span>, <span class="hljs-keyword">true</span>);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;
      out.write(<span class="hljs-string">&quot;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;html&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;head&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;meta http-equiv=\&quot;content-type\&quot; content=\&quot;text/html; charset=utf-8\&quot;&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;title&gt;&#x7B80;&#x5355;JSP&#x9875;&#x9762;&#x793A;&#x4F8B;&lt;/title&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;/head&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;body&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&#x8FD9;&#x662F;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684; JSP&#x9875;&#x9762;&#x793A;&#x4F8B;&#x2014;&#x2014;HelloJSP &lt;br&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;/body&gt;\r\n&quot;</span>);
      out.write(<span class="hljs-string">&quot;&lt;/html&gt;&quot;</span>);
    } <span class="hljs-keyword">catch</span> (java.lang.Throwable t) {
      <span class="hljs-keyword">if</span> (!(t <span class="hljs-keyword">instanceof</span> javax.servlet.jsp.SkipPageException)){
        out = _jspx_out;
        <span class="hljs-keyword">if</span> (out != <span class="hljs-keyword">null</span> &amp;&amp; out.getBufferSize() != <span class="hljs-number">0</span>)
          <span class="hljs-keyword">try</span> {
            <span class="hljs-keyword">if</span> (response.isCommitted()) {
              out.flush();
            } <span class="hljs-keyword">else</span> {
              out.clearBuffer();
            }
          } <span class="hljs-keyword">catch</span> (java.io.IOException e) {}
        <span class="hljs-keyword">if</span> (_jspx_page_context != <span class="hljs-keyword">null</span>) _jspx_page_context.handlePageException(t);
        <span class="hljs-keyword">else</span> <span class="hljs-keyword">throw</span> <span class="hljs-keyword">new</span> ServletException(t);
      }
    } <span class="hljs-keyword">finally</span> {
      _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x8FD9;&#x6BB5;&#x4EE3;&#x7801;&#x5C31;&#x662F;HelloJSP.jsp&#x7F16;&#x8BD1;&#x751F;&#x6210;&#x7684;Java&#x4EE3;&#x7801;&#xFF0C;&#x5B83;&#x7684;&#x8DEF;&#x5F84;(&#x6211;&#x7684;&#x7535;&#x8111;)&#x4E3A;&#xFF1A;<code>D:\apache-tomcat-8.0.42\work\Catalina\localhost\ROOT\org\apache\jsp\</code>&#x4E2D;&#x3002;&#x5728;&#x8FD9;&#x4E2A;&#x76EE;&#x5F55;&#x4E0B;&#x4F1A;&#x6709;&#x4E24;&#x4E2A;&#x5BF9;&#x5E94;&#x7684;&#x6587;&#x4EF6;&#xFF0C;&#x4E00;&#x4E2A;&#x662F;class&#x6587;&#x4EF6;&#x4E00;&#x4E2A;&#x662F;java&#x6587;&#x4EF6;&#x5982;&#x4E0B;&#x793A;&#x4F8B;&#xFF1A;</p>
<p><img src="../images/posts/jsp_translate.png.png" alt="&#x793A;&#x4F8B;"></p>
<h2 id="jsp&#x7684;&#x6267;&#x884C;&#x8FC7;&#x7A0B;">JSP&#x7684;&#x6267;&#x884C;&#x8FC7;&#x7A0B;</h2>
<p>JSP&#x7684;&#x6267;&#x884C;&#x8FC7;&#x7A0B;&#x4E3B;&#x8981;&#x53EF;&#x4EE5;&#x5206;&#x4E3A;&#x4EE5;&#x4E0B;&#x51E0;&#x70B9;&#xFF1A;</p>
<ol>
<li><p>&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x51FA;&#x8BF7;&#x6C42;&#x3002;</p>
</li>
<li><p>Web&#x5BB9;&#x5668;&#x5C06;JSP&#x8F6C;&#x8BD1;&#x6210;Servlet&#x6E90;&#x4EE3;&#x7801;&#x3002;</p>
</li>
<li><p>Web&#x5BB9;&#x5668;&#x5C06;&#x4EA7;&#x751F;&#x7684;&#x6E90;&#x4EE3;&#x7801;&#x8FDB;&#x884C;&#x7F16;&#x8BD1;&#x3002;</p>
</li>
<li><p>Web&#x5BB9;&#x5668;&#x52A0;&#x8F7D;&#x7F16;&#x8BD1;&#x540E;&#x7684;&#x4EE3;&#x7801;&#x5E76;&#x6267;&#x884C;&#x3002;</p>
</li>
<li><p>&#x628A;&#x6267;&#x884C;&#x7ED3;&#x679C;&#x54CD;&#x5E94;&#x81F3;&#x5BA2;&#x6237;&#x7AEF;&#x3002;</p>
</li>
</ol>
<p>&#x793A;&#x4F8B;&#x5982;&#x4E0B;&#xFF1A;</p>
<p><img src="../images/posts/jsp_execute.png" alt="&#x793A;&#x4F8B;"></p>
<h2 id="&#x603B;&#x7ED3;">&#x603B;&#x7ED3;</h2>
<p>JSP&#x6267;&#x884C;&#x8FC7;&#x7A0B;&#xFF1A;</p>
<ol>
<li><p>&#x9996;&#x5148;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x51FA;&#x8BF7;&#x6C42;(request )&#xFF0C;&#x8BF7;&#x6C42;&#x8BBF;&#x95EE;JSP&#x7F51;&#x9875;</p>
</li>
<li><p>&#x63A5;&#x7740;&#xFF0C;JSP Container&#x5C06;&#x8981;&#x8BBF;&#x95EE;&#x7684;.JSP&#x6587;&#x4EF6; &#x8F6C;&#x8BD1;&#x6210;Servlet&#x7684;&#x6E90;&#x4EE3;&#x7801;&#xFF08;.java&#x6587;&#x4EF6;&#xFF09;</p>
</li>
<li><p>&#x7136;&#x540E;&#xFF0C;&#x5C06;&#x4EA7;&#x751F;&#x7684;Servlet&#x7684;&#x6E90;&#x4EE3;&#x7801;&#xFF08;.java&#x6587;&#x4EF6;&#xFF09;&#x7ECF;&#x8FC7;&#x7F16;&#x8BD1;&#xFF0C;&#x751F;&#x6210;.class&#x6587;&#x4EF6;&#xFF0C;&#x5E76;&#x52A0;&#x8F7D;&#x5230;&#x5185;&#x5B58;&#x6267;&#x884C;</p>
</li>
<li><p>&#x6700;&#x540E;&#x628A;&#x7ED3;&#x679C;&#x54CD;&#x5E94;(response )&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;&#x6267;&#x884C;JSP&#x7F51;&#x9875;&#x6587;&#x4EF6;&#x65F6;&#xFF0C;&#x9700;&#x8981;&#x7ECF;&#x8FC7;&#x4E24;&#x4E2A;&#x65F6;&#x671F;&#xFF1A; &#x8F6C;&#x8BD1;&#x65F6;&#x671F;(TranslationTime)&#x548C;&#x8BF7;&#x6C42;&#x65F6;&#x671F;(RequestTime)&#x3002;</p>
<ul>
<li><p>&#x8F6C;&#x8BD1;&#x65F6;&#x671F;&#xFF1A;JSP&#x8F6C;&#x8BD1;&#x6210;Servlet&#x7C7B;(.class&#x6587;&#x4EF6;)&#x3002;</p>
</li>
<li><p>&#x8BF7;&#x6C42;&#x65F6;&#x671F;&#xFF1A;Servlet&#x7C7B;(.class&#x6587;&#x4EF6;)&#x6267;&#x884C;&#x540E;&#xFF0C;&#x54CD;&#x5E94;&#x7ED3;&#x679C;&#x81F3;&#x5BA2;&#x6237;&#x7AEF;&#x3002;</p>
</li>
</ul>
</li>
<li><p>&#x8F6C;&#x8BD1;&#x671F;&#x95F4;&#x4E3B;&#x8981;&#x505A;&#x4E86;&#x4E24;&#x4EF6;&#x4E8B;&#x60C5;&#xFF1A;</p>
<ul>
<li><p>&#x5C06;JSP&#x7F51;&#x9875;&#x8F6C;&#x8BD1;&#x4E3A;Servlet&#x6E90;&#x4EE3;&#x7801;(.java)&#xFF0C;&#x6B64;&#x6BB5;&#x79F0;&#x4E3A;&#x8F6C;&#x8BD1;&#x65F6;&#x671F;(Translation time)&#xFF1B;</p>
</li>
<li><p>&#x5C06;Servlet&#x6E90;&#x4EE3;&#x7801;(.java)&#x7F16;&#x8BD1;&#x6210;Servlet&#x7C7B;(.class)&#xFF0C;&#x6B64;&#x9636;&#x6BB5;&#x79F0;&#x4E3A;&#x7F16;&#x8BD1;&#x65F6;&#x671F;(Compilation time)&#x3002;</p>
</li>
</ul>
</li>
</ol>
<p>&#x5176;&#x5B9E;&#xFF0C;JSP&#x5C31;&#x662F;&#x4E00;&#x4E2A;Servlet&#x3002;</p>

                                
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